Analysis of information sources in references of the Wikipedia article "Two-Face" in English language version.
Harvey Dent was not only a friend of Bruce Wayne, he was one of Batman's greatest allies within the Gotham City legal system (per Batman: Year One, their relationship predated Batman and Gordon's partnership) and one of the few city's civil servants not in the pocket of the Gotham Mob. When Harvey turned heel, Batman lost more than just an ally, he lost a friend.
Though Harvey Dent has no superpowers, he possesses a genius-level intellect and is an expert in criminology and police procedures, helping him predict how the Gotham City Police Department will try to stop his crimes. His split personality, genius intellect and reliance on flipping a coin to make decisions make him an extremely unpredictable opponent.
Though Harvey Dent has no superpowers, he possesses a genius-level intellect and is an expert in criminology and police procedures, helping him predict how the Gotham City Police Department will try to stop his crimes. His split personality, genius intellect and reliance on flipping a coin to make decisions make him an extremely unpredictable opponent.